A beautiful young woman in the South of France is stalked by, then raped by, a mysterious masked assailant. She shoots him dead soon afterwards and dumps his corpse in the sea. Later, an American investigator turns up, and to her horror he seems to know everything about what she has done......

A brilliant surgeon, Dr. Génessier, helped by his assistant Louise, kidnaps nice young women. He removes their faces and tries to graft them onto the head on his beloved daughter Christiane, whose face has been entirely spoiled in a car crash. All the experiments fail, and the victims die, but Génessier keeps trying....